Journal
PHYSICAL REVIEW LETTERS
Volume 113, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.087202
Keywords
-
Categories
Funding
- NSF
- CUA
- DOE [FG02-97ER25308, DE-FG02-08ER46482]
- HQOC
- DARPA at Harvard
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969816] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1125846] Funding Source: National Science Foundation
Ask authors/readers for more resources
It is generally believed that superconductivity only weakly affects the indirect exchange between magnetic impurities. If the distance r between impurities is smaller than the superconducting coherence length (r less than or similar to xi), this exchange is thought to be dominated by Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions, identical to the those in a normal metallic host. This perception is based on a perturbative treatment of the exchange interaction. Here, we provide a nonperturbative analysis and demonstrate that the presence of Yu-Shiba-Rusinov bound states induces a strong 1/r(2) antiferromagnetic interaction that can dominate over conventional RKKY even at distances significantly smaller than the coherence length (r << xi). Experimental signatures, implications, and applications are discussed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available